Overview
The 3-770522-1 is a tin-plated power socket contact in the TE Connectivity SL-156 series, accepting 18-24 AWG wire via crimp termination.
How it compares
The 3-770522-1 accepts 18-24 AWG wire, while peer 1326030-4 accepts 12 AWG — the wire gauge range differs, so crimp tooling and die sets are not shared between the two contacts.